12101001210 has 32 divisors (see below), whose sum is σ = 32269337280. Its totient is φ = 3226933584.

The previous prime is 12101001203. The next prime is 12101001223. The reversal of 12101001210 is 1210010121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12101001192 and 12101001201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22408992 + ... + 22409531.

It is an arithmetic number, because the mean of its divisors is an integer number (1008416790).

Almost surely, 2^12101001210 is an apocalyptic number.

12101001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12101001210 is an abundant number, since it is smaller than the sum of its proper divisors (20168336070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12101001210 is a wasteful number, since it uses less digits than its factorization.

12101001210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44818539 (or 44818533 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12101001210 its reverse (1210010121), we get a palindrome (13311011331).

The spelling of 12101001210 in words is "twelve billion, one hundred one million, one thousand, two hundred ten".